Brave AI correctly noted that one cubit foot of ice weighs about 57 pounds, but in the next paragraph of calculations it completely spaced out and continued the calculations with a figure of 57 pounds per cubic meter, which dramatically inflated the resulting volume to something I knew was wrong as soon as I saw it. You'd think AI would at least be able to do math well, but it continues to make these sorts of extremely basic errors, and that's why I can't trust AI results without independent verification. And if I have to go through the bother of independently verifying anything it says, why bother with it in the first place?